Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone | HCID 6775 | — |
| Reactant | (5R)-5-[(E)-2-(4-tert-butylphenyl)-2-{5-(difluoromethoxy)-6-[(4-methoxybenzyl)oxy]-pyridin-2-yl}ethenyl]-1-(2,4-dimethoxybenzyl)pyrrolidin-2-one | HCID 67400919 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | HCID 58452509 | HCID 58452509 | 31.4% |
Reaction Steps
Water (0.4 mL) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (1.72 g) were added to a solution of (5R)-5-[(E)-2-(4-tert-butylphenyl)-2-{5-(difluoromethoxy)-6-[(4-methoxybenzyl)oxy]-pyridin-2-yl}ethenyl]-1-(2,4-dimethoxybenzyl)pyrrolidin-2-one (511 mg) in chloroform (8 mL), and the mixture was stirred at 65° C. for 16 hours. Water was added to the reaction solution. After filtration, the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=1:0→1:1→chloroform:methanol=1:0→95:5→9:1) to give the title compound as a colorless oil (96 mg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08822503B2 |
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| Source dataset | uspto-grants-2014_09 |
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| ORD ID | ord-3e50b27580ac4901b4dfa94127c97c6b |
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| Source note | uspto-grants-2014_09 |
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